Car window structure



June 25, 1940.

J. SCHUNK CAR WINDOW STRUCTURE Filed May 18, 1937 |NvENToR Bgm 5EFH EICHUNK.

ATTORN EY5 Patented June 25,1940 l 27205393;

UNITED STATES PATENT oFEi-cE CAR WINDOW STRUCTURE Joseph Schunk, Newark, N. J., assigner to Thek National Lock Washer Company, Newark, N. J., a corporationof New Jersey Application May 18, 1937,v Serial No. 143,317 l g 7 claims. (o1. rss- 64) f. The present invention relates to an improvepartially broken away to 'show a portion ofthe ment in car window structure, particularly for inner side of the outer sash.

useY in ra-ilway passenger cars, busses, or the like, Fig. 2 is a vertical sectional view, take-n along ofthe air-conditioned type, where the windows the line 2-2 of Fig. 1.

5f are in the form of double sashes to provide a Fig, 3 is a horizontal sectional view, taken 531 sealed insulatingl air space' between them, and along the line 3-3 of Fig. l. are a xed installation, as distinguished from Fig. 4 is an enlarged horizontal sectional view the usual type of car window which is arranged of the left hand side of the sash,l also taken along to be raised and lowered. the line 3-3 of Fig. 1.

l0=` With this type ofA structure heretofore in user Fig. 5 is a view similar to Fig. ll, showing the Mil considerable diliculty has been experienced when hinge sash in open position, and showing the re-glazing was necessary; as the structure reglass and retaining means of the outer sashy in quiredV the removal of' the sash frames in order separated relation.

to remove and install the glass. It is'pro-posed Fig. 6 is an enlarged detailed view in horizonll in the present invention toY provide a window tal section showing the weather stripping. 1'52 structure irl-'which one oi the Window frames is Similar reference characters indicate correfnred while the other is hinged and adapted to be spending parts throughout the several gures of secured in xed relation to thefxed fra-me, and the drawing. further toy provide sash retaining means which Referring tothe drawing, the window struc-l 20 are accessible upon opening of the hinged slash, ture, in which the invention is incorporated, coinzo sothat by simply removing the retaining means prises an outer panel l@ having a window openirom the sash frames theA glass may be readily ing l l therein of rectangular form, and to the removed' and installed. inner side of this panel there is secured a rec- Another object is to provide" a' sash retaining tangular frame formed of channel iron members 2,-, means in the form of a strip or frame carrying lf2. To the upright: frame members there are a resilient sealing or glazing stri-p which through secured the. vertically extending curtain guides the attachment of the frame is securely pressed lli-I3 and to the lower horizontal frame meminto tight engagementl with the glass and at the ber there is secured the sill I4. Same "Dime DTGSSGS the glass IIO tight engage- At suitable intervals the channel members I2 the frame. l5, which are of rectangular shape and are welded A further object is to provide al window strucor otherwise suitably secured in place, and to ture in which the glass retaining means will be these members I5' the stationary sash frame concealed both from the outer and inner sides of member Hi is rigidly secured by means of screws in', the window, thereby providing a structure which Il, this frame being of rectangular form and 35i may not be readily tampered with, at the same having the same cross-sectional shape along both time giving to the outer and inner sides of the the upright portions andthe horizontal portions. window structure a smooth and attractive ap- This frame l5 isof sT-like formation in cross-- pearance. section and is provided at its `mounting portion r. ment With the glass' receiving Strip' Carried by are providedV with window sashv mounting blocks ao 4o A further object is to provide weather stripwith an inwardly projecting flange i8 to which ping for supporting vand sealing the glass sash the hinged sash frame is adapted to be secured, which will allow the glass to move insideV the as will presently more fully appear. The outer frame at all times when the. car structure weavesV side of the glass receiving portion ofthe frame from the movement of the car, at the same time i6y is engaged with a resilient sealing strip i3' 4,-, maintaining the glass in Sealed` relation.` which iscompessedY between the panel lil and 4. Withv the above and other objects in View, an the sash by tightening of the securing screws El. embodiment of the invention is shown in the l A shoulder flange 2lir is provided upon the aCCOmDaIlyiHg drawing, and this embodiment will intermediate portion of the sash frame and is be hereinafter more fully described with referf adapte f, as will presentlymore fully appear, to ence thereto; and the invention will be linally be engaged as a fulcrum by the glass retaining 5o,V

pointed out in the claims. member, and upon the yinner side of the glass In the drawing: receiving portion there is' provided a rib Zi to Fig. l isv a fragmentary inside elevationof a` which theglass retaining means is'adapted' to be window structure, accordingv to the exemplary secured.

55, illustrated embodimentV of the invention, being A' resilient glass receiving4 strip 22l having an 5m 32 at the inner edge. The recess angularly shaped corner recess 23, slightly diverging toward its base, for receiving the edge of the glass 24 is secured in the sash framing member by a flange 25 formed upon the rib 2| and engaging a pocket 26 in the strip, and by a dovetail shoulder 21 formed upon the inner end of the sash frame member and engaging a corner recess 28 in the strip. It will be observed that there are clearance spaces between the side surface of the recess 23 and the glass, and between the flange 25 and the sides and the base of the pocket 26, and that the inner surface of the strip 22 is spaced from the rib 2|, as at 22a, for a purpose presently to be more fully referred to.

The glass retaining strip or frame 29 is provided with a stiifening flange 30 which in the engaged position projects between the shoulder 2D and the rib 2|, and securedupon the inner end of this frame there is provided a glazing strip 3| formed of suitable resilient material, as rubber or felt, having one leg portion provided with a concave outer face 32 for engaging the glass and the glass receiving strip 22 the inner surface being convex, as at 32a, and converging from the surface of the member 29 to the outer periphery of this strip, and having its other leg portion provided with a convex outer face 33 with which the opposed glazing strip of the hinge sash engages, as will presently more fully appear, its inner surface being concave, as at 33a. The frame 29 is provided with an enlargement 34 at its inner end which has interlocking engagement with an under cut slot 35 in the glazing strip. The glass retaining strip or frame 29 is provided at suitable intervals with counter-sunk screw receiving holes 3B, and through which the securing screws 31 are engaged and screwed into threaded holes 38 in the rib 2|.

The clearances provided in relation tothe rubber strip 22 between the flange 25 and pocket 2B and at 22SL and 23, and in relation to the rubber strip 3| at the surfaces 32, 32a, 33 and 33a, are such that the glass 24 is permitted to move inside the frame at all times when the car structure weaves from the movement of the car itself on the track, especially when going around curves. At the same time the stripping is maintained in sealing engagement while thus compensatingly supporting the glass. In particular the spaces at 22EL and 26 act as a compensating means for variations in glass size, expansion and contraction, and stresses due to car weaving, and further maintain a close contact with the edge of the `glass to prevent a jumping action between the glass and the rubber strip 22. The recess 23 also provides compensation for twisting of the glass due to car stresses and irregularities of car construction and further provides aline contact with the glass at the outer edge. The recess 32 of the rubber strip 3| provides compensation for twisting of the glass due to car stresses and irregularities of car construction and also provides line contact with the glass at the outer edge and with the rubber strip 32 at the inner edge. The curved surface at 32a provides a means for compensating for glass thickness variations from normal size, which variations in practice may be as much as plus or minus and at the same time maintain a constant sealing contact with the glass at the outer edge and with the rubber strip 33n of the strip 3| on the outer sash provides a resilient weather seal when brought into contact with the opposed strip 3| of the inner sash, the convex surfaces 33 of the strips 3| of the outer and inner sashes the fixed sash so that providing line contact to form a resilient weather seal to completely insulate the dead air space between the inner and outer sashes from outside through the frame.

The hinged sash frame |68 is identical with the fixed sash frame I6, except for omission of the portion outwardly of the shoulder 20 by means of which the fixed sash is secured to the window structure. The corresponding parts of the hinged sash are therefore given the same reference characters. In the assembled relation the hinged sash is reversely disposed with respect to the glazing strips 3|3| of the fixed sash and the hinged sash contact each other. The hinged sash is mounted upon the iiange |8 by means of hinges 39--39 and is secured in closed position by screws 40 extended through the hinged sash and engaged with the threaded holes of blocks 4|-4I screwed upon the retaining member 29 of the fixed sash.

When these screws 4|4| are tightened the glazing strips 3l-3I are pressed tightly into engagement with each other and the two sashes are in fixed relation to the window structure. The glass retaining means are entirely concealed within the sashes, and the sashes present a smooth and attractive appearance at both the outer and inner side of the window structure.

In order to re-glaze either one or both of the sashes, it is only necessary to remove the screws 4|) whereupon the hinged sash may be swung to open position, as shown in Fig. 5. Thereupon the glass retaining frame 29 of either sash may be removed simply by disengaging the screws 31, the glazing strip 3| being simultaneously removed as a part of the retaining member. The glass may thereupon be lifted out of the glass receiving strip 22 and a new glass placed therein. This new glass is secured simply by screwing the retaining member in place. It will be observed that as the retaining member is secured into place the engagement of its outer end with the shoulder 29 causes the inner end carrying the glazing strip to be pulled in against the glass, thereby securely sealing the glass in place.

I have illustrated and described a preferred and satisfactory embodiment of the invention, but it will be understood that changes may be made therein, within the spirit and scope thereof, as defined in the appended claims.

Having thus described my invention, what I do claim and desire to secure by Letters Patent is:

1.In a car window structure, a window frame of substantially L-shape in cross-section providing an angular recess, a resilient weatherstripping member of substantially L-shape in crosssection engaged in said recess with its sides contacting and parallel to the sides of said frame and having an open sided angular recess to receive and permit removal of a glass pane transversely, a glass pane engaged at its edge in said recess exposed at one side, a removable rigid retaining member secured to and detachable from said frame, and a weatherstripping member of U- shape cross-section embracing the inner edge of said retaining member to engage its inner and outer surfaces adapted to engage said pane at its exposed side in opposed relation to said first weatherstripping member.

2. In a car window structure, a window frame of substantially L-shape in cross-section providing an angular recess, a resilient weatherstripping member of substantially L-shape in crosssection engaged in said recess with its sides contacting and parallel to the sides of said frame yviding an angular 2,205,993 and having an open sided angular recess to re-v posed glass engaging sides.

3. In a car window structure, a Window frame of substantially L-shape in cross-section providing an angular recess, a resilient Weatherstripping member of substantially L-shape in cross-section engaged in said recess with its sides contacting and parallel to the sides of said frame and having an open sided angular recess to receive and permit removal of a glass pane transversely, a glass pane engaged at its edge in said recess exposed at one side, a removable rigid retaining member secured to and detachable from said frame, a Weatherstripping member of U- shape cross-section embracing the inner edge of said retaining member to engage its inner and outer surfaces adapted to engage said pane at its exposed side in opposed relation to said irst Weatherstripping member, there being clearance space between said i'irst mentioned weatherstrlpping and said frame arranged opposite to the edge of said glass and adapted to permit relative movement between said Weatherstripping and said frame in a direction parallel to the plane of said glass.

4. In a car Window structure, a window frame of substantially L-shape in cross-section prorecess, a resilient Weatherstripping member of substantially L-shape in cross-section engaged in said recess with its sides contacting and parallel to the sides of said frame,

versely, a glass pane engaged at its edge in said recess exposed at one side, a removable rigid retaining member secured to and detachable from said frame, a weatherstripping member of U- shape cross-section embracing the inner edge of said retaining member to engage its inner and outer surfaces adapted to engage said pane at its exposed side in opposed relation to said ilrst Weatherstripping member, said second Weatherstripping member having a clearance space at its side engaging said glass.

5. In a car Window structure, a Window frame of substantially L-shape in cross-section providing an angular recess, a resilient weatherstripping member of substantially L-shape in crosssection engaged in said recess with its sides contacting and parallel to the sides of said frame, and having an open sided angular recess to receive and permit removal of a glass pane transversely, a glass pane engaged at its edge in said recess exposed at one side, a removable rigid retaining member secured to and detachable from said frame, a Weatherstripping member of U- shape cross-section embracing the inner edge of said retaining member to engage its inner and outer surfaces adapted to engage said pane at its exposed side in opposed relation to said iirst 6. In a car window structure, a Window frame of substantially L-shape in cross-section providing an angular recess, a resilient Weatherstripping member of substantially L-shape in crosssection engaged in said recess with its sides conrecess exposed at one side, a removable rigid retaining member secured to and detachable from said frame, a Weatherstripping member of U- shape cross-section embracing the inner edge of said retaining member to engage its inner and outer surfaces adapted movement between said Weatherstripping and said frame in a direction parallel to the plane of said glass, and said first weatherstripping member having a clearancespace at the opposite side of said glass from said second Weatherstripping member.

7. In a car Window structure, a Window frame of substantially L-shape in cross-section providing an angular recess, a resilient Weatherstripping member of substantially L-shape in crosssaid frame, a weatherstripping member of U- shape cross-section embracing-the inner edge ofi,

said retaining member to engage its inner and outer surfaces adapted to engage said pane at its 

